A study of reactor neutrino monitoring at the experimental fast reactor JOYO
2011; Elsevier BV; Volume: 662; Issue: 1 Linguagem: Inglês
10.1016/j.nima.2011.09.045
ISSN1872-9576
AutoresH. Furuta, Y. Fukuda, T. Hara, Takumi Haruna, N. Ishihara, M. Ishitsuka, Chikara Ito, M. Katsumata, T. Kawasaki, T. Konno, M. Kuze, J. Maeda, Takahiko Matsubara, H. Miyata, Y. Nagasaka, Koh‐hei Nitta, Y. Sakamoto, F. Suekane, T. Sumiyoshi, H. Tabata, Misao Takamatsu, N. Tamura,
Tópico(s)Particle physics theoretical and experimental studies
ResumoWe carried out a study of neutrino detection at the experimental fast reactor JOYO using a 0.76 tons gadolinium loaded liquid scintillator detector. The detector was set up on the ground level at 24.3 m from the JOYO reactor core of 140 MW thermal power. The measured neutrino event rate from reactor on–off comparison was 1.11±1.24(stat.)±0.46(syst.) events/day. Although the statistical significance of the measurement was not enough, backgrounds in such a compact detector at the ground level were studied in detail and MC simulations were found to describe the data well. A study for improvement of the detector for future such experiments is also shown.
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